The Big Bang Theory
A Theory that is "Bang On" Awesome!
Introduction by user581281669
INTRODUCTION TO THE BIG BANG
Introduction To The Big Bang by user581281669
OK, SO HOW DOES IT WORK?
Before The Big Bang?
Before the Big Bang? by user581281669
Summary Of The Big Bang Theory
Summary of The Big Bang Theory by user581281669
Scientists are unsure as to exactly how the universe grew after the Big Bang event. Many people believe that as matter cooled and time passed, diverse kinds of atoms began to form. Galaxies and universes that we know today began to form as these atoms eventually condensed (National Geographic). In addition, the cause of the cataclysm itself is still a realm of mystery.
The Big Bang Theory Timeline
The Big Bang Theory Timeline by user581281669
In Detail Explanation of the Big Bang Timeline
In Detail Explanation of the Big Bang by user581281669
10-43 seconds - The universe's existence began with the Big Bang, which generated all the energy, matter that the universe has as well as space and time. During this moment, the universe was a hot, extremely dense fireball.
10-35 to 10-33 seconds - A large expansion of space that was filled with the energy was caused by a process called "inflation". This period of inflation was halted when this energy was transformed into energy that we know today as well as matter.
10-6 seconds - After one millionth of a second after the Big Bang occurred, or after the inflation period, the universe continued to expand but not as quickly as before. The expansion caused the universe to cool down and become less dense. The basic forces of nature appeared, including the force of gravity, the weak and electromagnetic force, as well as the strong force that bounds nuclei of atoms together. Overall, the universe started to take shape.
1 second - At this moment, the universe was composed of various particles that smashed together to form neutrons and protons. Some of these fundamental particles are energy are called electrons, photons, quarks, neutrinos and so on.
3 seconds - Neutrons and protons formed nuclei of simple elements by coming together. Some of these elements include lithium, helium and hydrogen. This was the beginning of the formation of basic and fundamental elements.
10,000 years (The Radiation Era) - The radiation era was the first ever significant era in the universe's history, in which most of the energy was in the form of radiation (various wavelengths of light such as radio waves, UV rays and X rays). They were remnants of the hot dense state of the universe. Diluted and stretched to this day, they create the faint glow of microwaves that covers the entire universe.
300,000 years (Domination of Matter) - At this point, the balance between the energy in radiation and energy in matter was equal; however, as the universe continues to expand, the waves of light were diluted to lower energy levels, while the matter continued to travel largely unfazed. During this time, the neutral atoms were formed as electrons linked with helium and hydrogen nuclei. A clear picture of how the matter was distributed at this time was given by the microwave background radiation that hailed from this moment of time. In addition, the temperature dropped by 2,700 degrees Celsius. At this point, protons and atomic nuclei began to imprison electrons. The first atoms were formed.
300 million years (the Birth of Galaxies and Stars) - The gravity of the universe intensified irregularities that were slight in the primitive gas. Despite the fact the universe continued to expand, gas pockets became more dense. Because of this, stars ignited within these gas pockets. Groups of stars were able to become the first galaxies. During this moment, 12 - 15 billion years still stand before this instant of time and present time (Wiki Contributors).
ORIGIN AND HISTORY OF THE BIG BANG THEORY
Origin and History of the Big Bang Theory by user581281669
The Big Bang model originated from observations of other galaxies and their constant motion of moving away from our own galaxy at great velocities as if propelled by an ancient force. Georges Lemaître was a Belgian priest who first proposed the Big Bang Theory in the 1920s. A picture of him is shown on the left. This was when he suggested that the entire universe started out from a single atom (National Geographic).
EVIDENCE SUPPORTING THE BIG BANG THEORY
Evidence Supporting the Big Bang Theory by user581281669
Evidence 1: Expansion Of The Universe
Evidence 1: Expansion of the Universe by user581281669
Individuals may have opinionated why they think the universe is not becoming larger but could have been becoming smaller before and we just didn't know about it. The only answer is that there is no gadget that can achieve this change on a universal scale (Journey Through the Galaxy).
Evidence 2: Cosmic Microwave Background Radiation (CMB)
Evidence 2: Cosmic Microwave Background Radiation (CMB) by user581281669
Predicted by the Big Bang Theory, CMB is what's left over from when the universe when it was only 300,000 years old. As the young universe's matter became compressed, it became hot. This is due to the movement of the particles. The faster they move, the more energy they produce as well as the amount of heat formed. Atoms could not form before the universe was 300,000 years old as it was too hot. Therefore, photons ( particles of light) were immobile, as they kept reacting with electrons (Journey Through the Galaxy).
As the universe reached the age of 300,000 years old, it cooled down. Electrons were then bound to nuclei and atoms could form. As this occurred, photons were free to move. The Cosmic Microwave Background radiation was the "first light", making it a significant sign of the Big Bang's existence (Journey Through the Galaxy).
Evidence 3: Large Amounts Of Different Elements Of The Universe
Evidence 3: Large Amounts Of Different Elements Of the Universe by user581281669
Evidence 4: Evolution Of The Universe
Evidence 4: Evolution Of The Universe by user581281669
A founder of Cosmic Microwave Background Radiation (CMB).
Discovered the expansion of the universe.
A founder of Cosmic Microwave Background Radiation (CMB).
Gnixon. Universe_expansion2.png. 2007. Photograph. Wikipedia the Free Encyclopedia. n.d. Web. 20 May 2013.
Johnson, Bruce. Letters for My Daughters. n.d.. Photograph. Wordpress, n.d.. Web. 20 May 2013.
Journey Through the Galaxy. "Big Bang Theory." Big Bang Theory. Journey Through the Galaxy, 11 Jan. 2006. Web. 20 May 2013.
NASA/JPL-Caltech. The Big Bang. N.d. Photograph. University of Maryland, College Park, USA. Web. 20 May 2013.
NASA / WMAP Science Team. File:Ilc 9yr moll4096.png. 2012. Photograph. Wikipedia the Free Encyclopedia, n.d.. Web. 20 May 2013. <http://en.wikipedia.org/wiki/File:Ilc_9yr_moll4096.png>.
National Geographic. "Origins of the Universe." National Geographic. National Geographic, n.d. Web. 20 May 2013.
The Nobel Foundation. Autobiography. 2013. Photograph. Nobelprize.org, n.d.. Web. 20 May 2013.
The Nobel Prize in Physics 1978 Pyotr Kapitsa, Arno Penzias, Robert Woodrow Wilson. Autobiography. 2005. Photograph. Nobelprize.org, n.d.. Web. 20 May 2013. <http://www.nobelprize.org/nobel_prizes/physics/laureates/1978/penzias-autobio.html>.
Science is Everything!. The Universe. 2013. Photograph. Science is Everything!, n.d.. Web. 20 May 2013.
Singh Is Kinng. The Expanding Universe. 2009. Photograph. The Darker Side, n.d.. Web. 20 May 2013.
Weisstein, Eric. Hubble, Edwin (1889-1953). 1996-2007. Photograph. Wolfram Research, n.d.. Web. 20 May 2013.
Wikipedia contributors. "Big Bang." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 20 May. 2013. Web. 20 May. 2013.
Wikipedia contributors. "Chronology of the universe." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 17 May. 2013. Web. 20 May. 2013.
Wikipedia Contributors . File:Lemaitre.jpg. 2006. Photograph. Wikipedia the Free Encyclopedia, n.d.. Web. 20 May 2013.